Function getWhere

pkg/transform/where.go:22–33

getWhere returns a pointer to the WHERE field for supported statements.

(stmt ast.Statement)

// getWhere returns a pointer to the WHERE field for supported statements.
func getWhere(stmt ast.Statement) (*ast.Expression, error) {
	switch s := stmt.(type) {
	case *ast.SelectStatement:
		return &s.Where, nil
	case *ast.UpdateStatement:
		return &s.Where, nil
	case *ast.DeleteStatement:
		return &s.Where, nil
	default:
		return nil, &ErrUnsupportedStatement{Transform: "WHERE", Got: stmtTypeName(stmt)}
	}
}

// AddWhere returns a Rule that appends a condition to the WHERE clause of a
// SELECT, UPDATE, or DELETE statement. If the statement already has a WHERE clause,